Hamachi's problem

[Thong]

i'm using hamachi to Lan game with my friends to play DoTa, it manages to connected and lan but inside the game while playing, it's lag and not more than 5 minutes, it will disconnect and the game will be ended. i already turn off the firewall. what can i do? is it can't lan game through Hamachi? when i created game, my friend will be dropped and when he created game i will be the one who dropped. what is going on actually? i need helps...